Hydrocarbon-oil burner



April 15 1924. 1,490,861

D. SMITH HYDROCARBON OIL BURNER Filed April 26 1922 rial I i0 4 llll/mllll Z I :Q; I/111111111111 ATTORNEYS Patented Apr. 1.5, 192d.

umrsn stares DAVID SMITH, OF FALL RIVER,

MASSACHUSETTS, ASSIGNOB T HYDRO CARBON BURNER MANUFACTURING COMPANY, OFNEWPORT, ODE ISLAND, A CORPORA- TLION 00F RHODE ISLAND.

HYDRUCARBGN-OIL BURNER.

Application filed. April 26, 1922. Serial 110. 556,705.

To all whom'z't'mag concern:

Be it known that I, DAVID SMITH, a citizen of the United States, andresident of Fall River, in the county of Bristol and State ofMassachusetts, have invented a new and Improved Hydrocarbon-Oil Burner,of which the following is a full, clear, and exact description.

This invention relates to a hydro-carbon 10 burner, and particularly toan improved burner which burns efficiently with a low grade of oil.

. The invention also refers to burners in which the oil is broken upwhile under pressure, and mixed with air immediately previous to itsignition.

The object of the inventionis to provide an improved, simplified burnerstructure, which is inexpensive to manufacture, and which may be readilyadjusted to secure difierent results.

Another object of the invention is to provide a burner, using oil underpressure, and mixing the same with air in such a manner as to produce asubstantially perfect combustion.

In the accompanying drawings;

Figure 1 is a longitudinal vertical sectional view through a burnerdisclosing one embodiment of the invention.

Figure 2 is a front view of the structure shown in Figure 1.

Referring to the accompanying drawing by numerals,'1 indicates a supportof any kind, provided with a number of openings 2 through which air willpass into and through the openings 3 of the burner oasing't. If desired,air may be forced into these openings under pressure by any' suitablemeans. a

The casing 4 is provided with a tubular extension 5 threaded exteriorlyat 6, and formed with a central boss 7 acting as a bearing for therotating shaft 8, driven by any suitable power or mechanism at acompa'ratively high speed. The boss 7 is provided with oil passages 9which merge into a lateral passage-way 10 connected to any suitablesource of supply. Preferably the oil forced into the passage-way 10 isunder some considerable pressure, and is discharged into the chamber 11,which chamber 1s preferably maintained filled with a fuel, which fuelmoves therefrom through the various passage-ways 12 in the spider 13.

This spider is preferably secured to the shaft 8 and is formed integralwith a frustoconical shaped nozzle 14, and this nozzle, at the inner endhas a sliding fit with/the boss 7 and the outer end is chamfered at 15,whereby the fuel passing therefrom may spread to any desired extent. Itwill be observed that the different webs 16 of the spider 13, act asbeading or emulsifying members for the fuel which may be crude oil, orany desired form of oil. In order to cause the webs 16 to perform theirfunction more thoroughly, the same are constructed substantiallydiamond-shaped in cross section as illustrated in dotted lines inFigure 1. Surrounding the nozzle 14 is an air nozzle 17 which, at thedischarge end of the mouth 18, is only slightly larger than the outerend of the nozzle 14, while the inner end is much larger, and isinteriorly threaded so as to be secured onto the threaded section 6.

Suitable set screws '19 are provided for locking the nozzle 17 indifierent adjusted positions. When the parts are set as shown in Figure1, and the burner is in operation, a certain frame will be produced, butif the nozzle 17 is moved outwardly so that the mouth or end 18 isnearer the outer end of the nozzle 14, the flame will change its shapeand become longer, while if the nozzle 14.- was moved back, or away fromthe outer end of the nozzle 14, the flame would flare to a greaterextent.

lit will be noted that the diamond-shaped construction of the webs orlacerations 16, and the rotation of the nozzle or cup 14%, produces a.film of oil by centrifugal force, so

' that there is a circular sheet of emulsified or lacerated oildischarged from the nozzle 14 to mix with the air passing out theopening 18. lit will of course be understood that the pressure of. theoil, and the pressure of the air may be varied as circumstances maydeinland to secure the best burning action, and the highest efficiency.

1 claim: 1. An oil burner, comprising a base having an externalscrew-threaded cylindrical ortion and a central the cylindrical portionand pro1ecting forhub concentric with i till the cylindrical portion andWardly therein, an air nozzle adjustable on the threaded portion of thecasing, a shaft projecting through the hub, a cup fixed to the shaft andhaving its'inner reduced end mounted to turn upon the hub, and anannular shoulder on the hub against the extreme inner end of the cup,said base having air inlet passages therein and said base and hub havingan oil duct, the legs of which are at an angle to each other.

2. An oil burner, comprising a base having an external screw-threadedcylindrical portion and a central hub concentric with projectingforwardly therein, an air nozzle adjustable on the threaded portion .ofthe casing, a shaft projecting through thehub, a cup fixed to theshaft-and having its inner reduced end mounted to turn upon the hub, anannular shoulder on the hub against the extreme inner end of the cup,said base having air inlet passages therein and said base and hub havingan oil duct, and a spider integral with meo 'eea the cup and having itscentral portion secured to the shaft and its radial portionsconstituting lacerators.

3. An oil burner, comprising a base having an external screw-threadedcylindrical portion and a central hub concentric with the cylindricalportion and projecting forwardly therein, an air nozzle adjustable onthe threaded portion of the casing, a shaft projecting through the hub,a cup fixed to the shaft and having its inner reduced end mounted toturn upon the hub, an annular shoulder on the hub against the extremeinner end of the cup, said base having air inlet passages therein andsaid base and hub having an oil duct, and a spider integral with the cupand having itscentral portion secured to the shaft and its radialportions constituting lacerators, said lacerators having their forwardand rear edges tapered from both sides to sharp cutting edges.

DAVID SMITH.

